Replace gunicorn with uwsgi, use persistent db connections #90

Oleg-Komarov · 2024-04-25T13:28:53+02:00

Oleg-Komarov commented

2024-04-25 13:28:53 +02:00

The main goal is to configure persistent db connections, this solves two problems:

improves latency
in combination with a fixed number of uwsgi workers it puts a limit on the number of db connections the website can open, and this makes db usage predictable

It appears that django doesn't support persistent db connections with asgi yet:
https://github.com/django/django/pull/17914#issuecomment-1986390557
https://github.com/django/django/pull/16881
otherwise we could potentially switch to using a connection pool and continue using asgi.

This change also makes it more consistent with the rest of our web infra, which is using the same uwsgi deployment model.

Deployment:

./ansible.sh -i environments/production install.yaml --tags=pull,uwsgi
./ansible.sh -i environments/production deploy.yaml

The main goal is to configure persistent db connections, this solves two problems: - improves latency - in combination with a fixed number of uwsgi workers it puts a limit on the number of db connections the website can open, and this makes db usage predictable It appears that django doesn't support persistent db connections with asgi yet: https://github.com/django/django/pull/17914#issuecomment-1986390557 https://github.com/django/django/pull/16881 otherwise we could potentially switch to using a connection pool and continue using asgi. This change also makes it more consistent with the rest of our web infra, which is using the same uwsgi deployment model. Deployment: ``` ./ansible.sh -i environments/production install.yaml --tags=pull,uwsgi ./ansible.sh -i environments/production deploy.yaml ```

Oleg-Komarov added 2 commits 2024-04-25 13:28:54 +02:00

Use uwsgi instead of gunicorn 580816847b

django doesn't support persistent db connections with asgi yet

https://github.com/django/django/pull/17914#issuecomment-1986390557
https://github.com/django/django/pull/16881

use persistent db connections c1aa9ad681

Oleg-Komarov added 1 commit 2024-04-25 15:10:13 +02:00

remove parameters that are deprecated in systemd we use in prod 487d4397e0

Anna Sirota approved these changes 2024-04-25 15:10:36 +02:00

Oleg-Komarov merged commit f20d4c7e99 into main

2024-04-25 15:11:09 +02:00

Oleg-Komarov deleted branch asgi-to-wsgi

2024-04-25 15:11:09 +02:00

Oleg-Komarov referenced this issue from a commit

2024-04-25 15:11:10 +02:00

Replace gunicorn with uwsgi, use persistent db connections (#90)

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